Kofax Communication Server 10.0.0 User Manual
Page 27
Environment Guide
Version 10.00.00
© Copyright Kofax. All information is subject to change without notice.
27
3. Key performance indicators are values that must be fulfilled and measured during the operation in order
to check whether planned resources (see point 2. above) are really available. Refer to the chapter
Resources Estimation and Key Performance Indicators for TCOSS Tandem Server
Load channels [x] / throughput in fax pages
/ minute
Primary / secondary master metrics
20
40 fax pages / min
40
80 fax pages / min
60
120 fax pages / min
P
S
P
S
P
S
Required granted resources on the ESX server:
CPU [MHz]
1300
1300
1400
1400
1500
1500
RAM [MByte]
(1)
512
512
512
512
512
512
Resource capacity to be planned on the ESX server:
Average TCOSS Disk kBytes/s
50
50
100
100
150
150
Average TCOSS Disk IOPS/s
12
12
24
24
36
36
Average Network kBytes/s
(2)
150
50
250
100
350
250
Network bandwidth [Mbit/s]
(2)
10
10
10
10
10
10
Key performance indicators that must be measured and fulfilled for the proper operation:
Average RTT
ls1
[ms]
<100
<100
<100
<100
<100
<100
Peak RTT
ls1
[ms]
<1000
<1000
<1000
<1000
<1000
<1000
Average RTT
prim-sec
[ms]
<10
<10
<10
<10
<10
<10
Peak RTT
prim-sec
[ms]
<500
<500
<500
<500
<500
<500
Average RTT
storage-media
[ms]
<10
<10
<10
<10
<10
<10
Peak RTT
storage-media
[ms]
<500
<500
<500
<500
<500
<500
Average Write Disk Latency [ms]
(3)
<20
<20
<20
<20
<20
<20
Peak Write Disk latency [ms]
(3)
<2000
<2000
<2000
<2000
<2000
<2000
(1) Add 128 MByte RAM for each additional TCOSS storage or media server instance
(2) Average Network kBytes/s is the real bandwidth consumption, the Network bandwidth is the
recommended capacity to be planned for the TCOSS server
(3) This indicator stands for both local and remote disk latencies if Tandem Server is being used.
Mapping among key performance indicators and corresponding Windows performance counters
(1) The remote disk write counters include a sum of as network latency between primary and secondary
master and the disk access time itself.
Used abbreviations
Explanation
Performance Object
Performance Counter
Instance
Name
RTT
ls1
RTT
FoIP
Round-trip-time between
TCOSS and LS1 servers/
FoIP Servers
TCOSS Links
Avg. Packet-Ack Time ms
Peak Packet-Ack Time ms
L.XY
RTT
prim-sec
Round-trip-time between
primary and secondary
Master (that occurs during
the remote-disk access)
TCOSS Links
Avg. remote Disk Network
Delay ms
Peak remote Disk Network
Delay ms
None
RTT
storage-media
Round-trip-time between
Storage and Media
Servers (in the case of
ASP system)
TCOSS Links
Avg. Round Trip Time ms
Peak Round Trip Time ms
0, 1, 2, or
3
Average Write Disk
Latency [ms] ]
(1)
Average duration of a
write disk access in ms
TCOSS Disk
Avg. local Disk ms/Write
Avg. remote Disk ms/Write
None
Peak Write Disk
Latency [ms]
(1)
Peak duration of a write
disk access in ms
TCOSS Disk
Peak local Disk ms/Write
Peak remote Disk ms/Write
None